JP6966293B2 - Toll collection system, toll collection method and program - Google Patents

Description

The present invention relates to a toll collection system, a toll collection method and a program.

At a tollhouse on a tollhouse such as an expressway, a vehicle travels in a lane (driving lane) provided at the tollhouse gate and passes through the tollhouse. As an example of the toll collection equipment installed in each lane of the tollhouse, there is an automatic toll collection machine that automatically performs toll collection processing (delivery of money, payment by card, etc.) with the arriving user. .. In addition, a vehicle type discriminating device for discriminating the vehicle type classification of the traveling vehicle may be provided on the front side of the automatic toll collection machine in the lane direction. In this case, the automatic toll collection machine collects the toll according to the vehicle type classification determined by the vehicle type determination device.

At the tollhouse as described above, the automatic toll collection machine needs to determine the usage fee at the time of performing the toll collection process with the user. Therefore, the vehicle type determination device must specify the vehicle type classification at the stage before the head of the vehicle (near the driver's seat) reaches the automatic toll collector.
Here, conventionally, it is known that the number of axles of a vehicle is used as one of the information for discriminating the vehicle type. The vehicle type determination device can acquire the number of axles of the vehicle by detecting the number of times the tires of the traveling vehicle have stepped on the treads installed on the lane. However, when the number of axles is used as one of the information for determining the vehicle type, all the tires of the target vehicle pass through the tread plate before the head of the vehicle reaches the automatic toll collector. It is necessary that the total number of axles of the vehicle is fixed. Therefore, in the above-mentioned tollhouse, usually, in consideration of the maximum vehicle length (for example, 18 m) of the passing vehicle, the distance between the vehicle type determination device and the automatic toll collector is at least the maximum vehicle length or more. Has been done.

However, for example, it may be difficult to secure a distance between the vehicle type determination device and the automatic toll collector at least the maximum vehicle length due to the installation space at the tollhouse. Due to these circumstances, at tollhouses where the distance between the vehicle type determination device and the automatic toll collection machine is shorter than the maximum vehicle length (hereinafter, also referred to as "short island tollhouse"), vehicles with a long vehicle length (large vehicles) In the case of an oversized vehicle), the vehicle head reaches the toll collection machine without determining the number of axles (vehicle type classification), so the toll collection machine cannot perform the toll collection process.

In addition, Patent Document 1 describes a toll collection facility including a photographing unit (camera) that continuously photographs a predetermined photographing range on the front side in the lane direction of the vehicle detector 10A.

Japanese Unexamined Patent Publication No. 2016-170508

At a tollhouse on Short Island, if a vehicle with a long length (large vehicle, oversized vehicle) enters and the toll collection process is not performed by the automatic toll collection machine, for example, a guard at a remote location will use the automatic toll collection machine. The vehicle type classification is specified by remote control of. In this case, it is conceivable to provide a dedicated roadside camera at a position where the axles can be photographed so that the observer does not have to bother to visually check the number of axles of the vehicle.

However, installing a new dedicated roadside camera to check the number of axles will increase the number of components of the toll collection equipment installed on the roadside (island), resulting in an increase in installation space and installation cost. From this point of view, a problem arises.

An object of the present invention is to provide a toll collection system, a toll collection method, and a program capable of providing an inspection image for identifying a vehicle type classification to an observer while suppressing an increase in installation space and installation cost. It is in.

According to the first aspect of the present invention, the image display device (20) is an image display device that displays an inspection image, and displays a plurality of detection lights (P2) arranged in the height direction on the roadside (I). The detection results of the plurality of reflected lights acquired through the reflective vehicle detector (12) capable of projecting light from the lane (L) and detecting the reflected light corresponding to each of the plurality of detected lights. It includes an optical axis information acquisition unit (2001) to be acquired, and an image display unit (2002) that generates an inspection image (G) based on a time series of detection results of a plurality of the reflected light and displays it on a monitor.
By doing so, the image display device can acquire an inspection image showing the side shape of the traveling vehicle by using the reflective vehicle detector installed on the roadside. Therefore, it is possible to check the side shape of the traveling vehicle without newly installing a dedicated roadside camera on the roadside.
From the above, it is possible to provide the observer with an inspection image for identifying the vehicle type classification while suppressing the increase in the installation space and the installation cost.

Further, according to the second aspect, the above-mentioned image display device receives the designation of the vehicle type classification by the observer (W1) and transmits the information indicating the designated vehicle type classification (2003). Further prepare.
By doing so, the observer who visually confirmed the inspection image can remotely start the toll collection process by inputting the vehicle type classification designation operation to the image display device as it is, reducing the work load. Can be made to.

Further, according to the third aspect, the image display unit has a time difference (Δt) from the projection of the detected light to the reception of the reflected light, which is the detection result of the reflected light, and the reflection. The inspection image is generated based on the intensity of light and at least one of the time series.
In this way, by associating the shading of the image with at least one of "time difference" and "intensity", the axle of the vehicle can be clearly imaged.

Further, according to the fourth aspect, the toll collection system (1) is installed on the back side in the lane direction from the above-mentioned image display device, the reflective vehicle detector, and the reflective vehicle detector, and said. It is equipped with a toll collection machine (10, 10a) that collects tolls according to the vehicle type classification.
By doing so, at the stage of the toll collection process by the toll collector, the inspection image displayed by the image display device can be visually observed to determine the vehicle type classification of the arrived vehicle.

Further, according to the fifth aspect, the reflective vehicle detector projects the detected light toward the front side in the lane direction from the installation position of the reflective vehicle detector on the road side.
By doing so, the image display device 20 is on the front side (−X direction side) in the lane direction of the vehicle body of the target vehicle (for example, the vehicle A shown in FIGS. 1 and 2) with respect to the vehicle detection position X0. ) Can be projected as an inspection image G up to the rear part of the vehicle body. Therefore, the observer W1 can grasp the side surface shape of the vehicle body in a wide range.

Further, according to the sixth aspect, in the reflective vehicle detector, the head (A1) of the vehicle belonging to the vehicle type category having the largest charge has reached the installation position (X0) of the toll collector in the lane direction. At this time, the detection light is installed so as to be able to be projected on the front side in the lane direction from the rearmost axle (TE) of the vehicle in the vehicle body of the vehicle.
By doing so, since the detection light is projected on the rearmost axle of the vehicle belonging to the vehicle type classification of the maximum charge, it is possible to capture all the axles of the traveling vehicle on the inspection image.

Further, according to the seventh aspect, the above-mentioned toll collection system is installed on the lane or the roadside, and has one or a plurality of sensors (13, 14) for acquiring vehicle type discrimination information and the vehicle type discrimination. A vehicle type determination processing unit (1001) for determining the vehicle type classification of a vehicle traveling in the lane based on the information is further provided.
By doing so, when the vehicle type identification information can be correctly acquired through one or more sensors, the toll collection system automatically determines the vehicle type classification based on the vehicle type identification information and collects the charge. Can be confirmed.

Further, the image display method according to the eighth aspect is an image display method for displaying an inspection image for specifying the vehicle type classification of the traveling vehicle, and a plurality of detection lights arranged in the height direction are emitted from the roadside. An optical axis information acquisition step of acquiring a plurality of detection results of the reflected light from a reflective vehicle detector capable of projecting light toward the lane and detecting the reflected light corresponding to each of the plurality of detected lights, and a plurality of steps. It has an image display step of generating an inspection image based on the time series of the detection result of the reflected light and displaying it on a monitor.

Further, the program according to the ninth aspect is a program that causes a computer to function as an image display device for displaying an inspection image for identifying a vehicle type classification of a traveling vehicle, and the computers are arranged in the height direction. The plurality of detected lights to be detected are projected from the road side toward the lane, and the detection results of the plurality of reflected lights are acquired from the reflective vehicle detector capable of detecting the reflected light corresponding to each of the plurality of detected lights. It functions as an optical axis information acquisition unit and an image display unit that generates an inspection image based on a time series of detection results of a plurality of the reflected lights and displays it on a monitor.

According to each aspect of the above-described invention, it is possible to provide an inspection image for identifying a vehicle type classification to an observer while suppressing an increase in installation space and installation cost.

FIG. 1 is a diagram showing an overall configuration of a toll collection system according to the first embodiment. FIG. 2 is a diagram showing an overall configuration of a toll collection system according to the first embodiment. It is a figure explaining the function of the reflection type vehicle detector which concerns on 1st Embodiment in detail. It is a figure which shows the functional structure of the charge automatic collection machine which concerns on 1st Embodiment. It is a figure which shows the functional structure of the image display device which concerns on 1st Embodiment. It is a figure which shows the 1st processing flow of the charge automatic collection machine which concerns on 1st Embodiment. It is a figure which shows the 2nd processing flow of the charge automatic collection machine which concerns on 1st Embodiment. It is a figure which shows the detail of the optical axis information which concerns on 1st Embodiment. It is a figure which shows the processing flow of the image display apparatus which concerns on 1st Embodiment. It is a figure which shows the example of the image displayed by the image display device which concerns on 1st Embodiment. It is a figure which shows the whole structure of the charge collection system which concerns on 2nd Embodiment. It is a figure which shows the detail of the optical axis information which concerns on 3rd Embodiment.

<First Embodiment>
Hereinafter, the toll collection system according to the first embodiment will be described with reference to FIGS. 1 to 10.

(Overall configuration of toll collection system)
1 and 2 are diagrams showing the overall configuration of the toll collection system according to the first embodiment.
FIG. 1 shows a side view of various constituent members installed on the lane and the road side of the toll collection system 1, and FIG. 2 shows a top view of the constituent members.

The toll collection system 1 according to the first embodiment is installed in each of the lanes L (traveling lanes) laid at the tollhouse of the toll road, and the passengers (users of the toll road) of the vehicle traveling in each lane L. It is a system that collects fees from. The toll collection system 1 charges the user according to the vehicle type classification of the traveling vehicle (for example, 5 classifications of "light vehicle", "ordinary vehicle", "medium-sized vehicle", "large vehicle", and "extra-large vehicle"). Receive from.

As shown in FIGS. 1 and 2, the toll collection system 1 includes an automatic toll collection device 10 installed on the roadside zone (island I) of the lane L, reflective vehicle detectors 11 and 12, and a license plate reading. It includes a machine 13, a tread plate 14 installed on the lane L, and an image display device 20 installed at the remote monitoring station N.
It is assumed that the vehicle A shown in FIGS. 1 and 2 belongs to the "extra-large vehicle" (vehicle type classification with maximum charge).

In the following description, the direction in which the lane L extends is defined as the ± X direction, and is also described as the “lane direction”. Further, the direction orthogonal to the lane direction (± X direction) on the horizontal plane is defined as the ± Y direction, and is also described as the “lane width direction”. In addition, a vehicle that intends to pass through the toll booth shall travel in lane L from the -X direction side to the + X direction side, with the + X direction as the "back side in the lane direction" and the -X direction as the "front side in the lane direction". Describe. Further, the vertical direction orthogonal to the horizontal plane (± X direction and ± Y direction) is defined as the ± Z direction, and is also described as the “height direction”.

The toll collection system 1 according to the first embodiment starts from the vehicle detection position X0 (described later) defined at the entrance of the lane L (near the end on the −X direction side of the island I) in the lane direction (± X direction). , It is installed in a tollhouse where the distance to the toll collection position X1, which is the installation position of the automatic toll collection machine 10, is relatively short. Therefore, for example, when the vehicle A belonging to the "extra-large vehicle" arrives, even if the vehicle head A1 of the vehicle A reaches the toll collection position X1 and the passenger is in a state where the toll payment process should be performed. , The tail A2 of the vehicle A is located on the front side (−X direction side) in the lane direction from the vehicle detection position X0 (see FIGS. 1 and 2).

The automatic toll collection machine 10 is an aspect of the "toll collection machine" and is installed at a predetermined position (charge collection position X1) on the back side (+ X direction side) in the lane direction from the vehicle detection position X0. The automatic toll collection machine 10 automatically performs toll collection processing according to the vehicle type classification for the passengers (users of the toll road) of the arriving vehicle. Specifically, the automatic toll collection machine 10 gives and receives money to the passengers of the vehicle, processes payment by credit card, and the like.
The automatic toll collection machine 10 determines the vehicle type classification of the arriving vehicle through various sensors described later. When the vehicle type classification is correctly determined, the automatic toll collection machine 10 determines the payment charge according to the determination result and starts the toll collection process for the arriving vehicle. If the head of the vehicle (near the driver's seat) has reached the toll collection position X1 but the toll collection process is not started due to reasons such as the vehicle type determination process not being completed, the passenger of the vehicle By pressing the call button provided on the operation panel 101 of the automatic toll collection machine 10, it is possible to request an operation (start of toll collection processing) by the observer W1 waiting at the remote monitoring station N.

The reflective vehicle detectors 11 and 12 are single-optical axis multi-axis reflective vehicle detectors, respectively. Specifically, the reflective vehicle detectors 11 and 12 have a housing extending in the height direction from the island I, and in the housing, a plurality of housings over a predetermined range in the height direction (± Z direction). The light emitting part and the light receiving part are arranged. Each light projecting unit projects detection light (infrared light) parallel to the horizontal plane (XY plane) at the height at which the light projecting unit is installed. The light receiving unit detects the reflected light of the detection light projected by the corresponding light projecting unit. Hereinafter, the detection light emitted by each light projecting unit is also referred to as an “optical axis”.
Further, the pair of the light emitting unit and the light receiving unit arranged in the housings of the reflecting vehicle detectors 11 and 12 emits the detected light toward at least the axle (tire) of the traveling vehicle in the height direction. Arranged to include the possible range.

Both the reflective vehicle detectors 11 and 12 perform "entry detection" and "passage detection" of the vehicle at the vehicle detection position X0 defined on the front side (-X direction side) in the lane direction from the toll collection position X1. It is a reflective vehicle detector to perform. The reflective vehicle detector 11 is installed at the vehicle detection position X0, and the reflective vehicle detector 12 is installed further toward the front side in the lane direction (−X direction side) than the reflective vehicle detector 11.
Here, "entry detection" means detecting that the vehicle has moved forward (traveled from the −X direction side to the + X direction side) and the head of the vehicle has reached the vehicle detection position X0 in the lane L. .. Further, the "passage detection" is to detect that the vehicle whose "entry detection" has been detected moves forward further and the stern of the vehicle has passed the vehicle detection position X0 (the stern has slipped out).
As will be described later, the automatic toll collector 10 performs the above-mentioned "entry detection" and "passage detection" based on the combination of the vehicle detection signals (described later) by both the reflective vehicle detectors 11 and 12.

As shown in FIGS. 1 and 2, the light projecting portion of the reflecting vehicle detector 11 is directed from the road side (island I) toward the lane L in a direction orthogonal to the lane direction (± X direction) (that is, the lane width direction). (± Y direction)), the detection light P1 (infrared light) is projected. Further, the light receiving unit of the reflecting vehicle detector 11 detects the reflected light corresponding to each of the detection lights P1.
The light projecting portion of the reflective vehicle detector 12 is directed from the road side (island I) toward the lane L to the front side (-X direction side) in the lane direction from the installation position of the reflective vehicle detector 12 on the island I. The detection light P2 is projected toward the vehicle. In the present embodiment, the reflective vehicle detector 12 is located at a position where the rearmost axle TE of the vehicle A is arranged when the head A1 of the vehicle A belonging to the "extra-large vehicle" reaches the toll collection position X1. The detection light P2 is installed on the front side in the lane direction (-X direction side) so that the detection light P2 can be projected (see FIGS. 1 and 2). Here, assuming that the maximum vehicle length is 18 meters, the reflective vehicle detector 12 preferably uses the vehicle A when the head A1 of the vehicle A having a vehicle length of 18 meters reaches the toll collection position X1. The detection light P2 may be installed so as to be projected on the front side (−X direction side) in the lane direction from the position where the tail A2 of the vehicle is arranged. By doing so, the image display device 20 can generate an inspection image including the tail A2 for every vehicle A arriving at the tollhouse through the detection light P2.
The reflective vehicle detectors 11 and 12 repeat the projection of the detection lights P1 and P2 and the detection of the reflected light of the detection lights P1 and P2 in a predetermined sampling cycle (order of several milliseconds).

The license plate reader 13 photographs the license plate of the vehicle that has entered, and also describes information such as a classification number, a vehicle number, and a plate size from the captured image information (hereinafter, these are collectively referred to as "NP information". .) To get. The license plate reader 13 is installed on the back side (+ X direction side) in the lane direction from the vehicle detection position X0, and the timing when the vehicle head A1 of the vehicle A reaches the vehicle detection position X0 (that is, "entry detection" is performed. Shoot at (timing).
The tread plate 14 is installed so as to extend in the lane width direction (± Y direction) at the vehicle detection position X0 on the lane L. The tread plate 14 is a pressing sensor that detects stepping on the vehicle axle (tire) at the vehicle detection position X0. The automatic toll collection machine 10 specifies the number of axles of the traveling vehicle in combination with the vehicle detection signal of the reflective vehicle detector 11 capable of detecting the vehicle at the same position as the tread plate 14 (vehicle detection position X0).
The license plate reader 13 and the tread plate 14 described above are installed on the lane L and the roadside (island I), and are one aspect of a sensor for acquiring vehicle type discrimination information. Here, in the case of the present embodiment, the "vehicle type discrimination information" is the "NP information" acquired through the license plate reader 13 and the "number of axles" acquired through the tread plate 14. However, in other embodiments, the sensor for acquiring the vehicle type discrimination information is not limited to the license plate reader 13 and the tread plate 14. The toll collection system 1 according to another embodiment is used as a "sensor for acquiring information for species discrimination", and further, for acquiring a vehicle height detector for acquiring "vehicle height" and "vehicle length". The vehicle may be provided with a vehicle length detector. In this case, the "vehicle height" and "vehicle length" are also included in the "vehicle type discrimination information". Further, when the tread plate 14 can detect the stepping position in the lane width direction (± Y direction), the "vehicle width" (tread width) that can be acquired through the tread plate 14 is also included in the "vehicle type determination information".

The image display device 20 is provided inside a remote monitoring station N installed at a position away from the lane L (see FIG. 1). The image display device 20 causes the observer W1 to display an inspection image for identifying the vehicle type classification of the traveling vehicle. By visually recognizing the inspection image, the observer W1 can determine the vehicle type classification of the vehicle without directly visually observing the arriving vehicle.
The details of the function of the image display device 20 will be described later.

FIG. 3 is a diagram for explaining in detail the function of the reflective vehicle detector according to the first embodiment.
FIG. 3 schematically illustrates a state of the detection light P2 projected from the reflecting vehicle detector 12 and the reflected light reflected by the detection light P2 on the side surface of the vehicle body of the vehicle A.
When the detection light P2 is projected onto the vehicle body side surface of the vehicle A, the specularly reflected light P21 emitted at a reflection angle equal to the incident angle of the detection light P2 on the vehicle body side surface and the diffusely reflected light P22 emitted in all directions. And, occur. Although the specularly reflected light P21 has high light intensity, it does not return to the reflecting vehicle detector 12. Therefore, the reflecting vehicle detector 12 cannot detect the specular reflected light P21. On the other hand, the diffusely reflected light P22 is emitted in all directions, although the light intensity is low. The sensitivity of the light receiving unit is adjusted so that the reflecting vehicle detector 12 can detect a part (diffuse reflected light P22a) of the diffusely reflected light P22 returning to the reflecting vehicle detector 12 among the diffusely reflected light P22. There is. That is, the reflective vehicle detector 12 emits the detection light P2 in a direction inclined at an acute angle with respect to the lane width direction (± Y direction), while emitting the reflected light (diffuse reflected light P22a) from the vehicle body of the traveling vehicle. Can be detected.

(Functional configuration of automatic charge collection machine)
FIG. 4 is a diagram showing a functional configuration of the automatic toll collection machine according to the first embodiment.
As shown in FIG. 4, the automatic toll collection machine 10 includes a CPU 100, an operation panel 101, a display panel 102, a memory 103, and a connection interface 104.

The CPU 100 is a processor that controls the entire operation of the automatic charge collection machine 10. Various functions of the CPU 100 will be described later.
The operation panel 101 is a user interface that receives a toll collection process (insertion of money, insertion of a credit card) from a passenger of a vehicle that has arrived at the automatic toll collection machine 10. As described above, the operation panel 101 is provided with a call button for making a call with the observer W1 who stands by at the remote monitoring station N.
The display panel 102 is a display panel provided on the automatic toll collection machine 10. The display panel 102 displays, for example, an operation instruction related to the toll collection process, an amount to be paid, and the like to the passengers of the vehicle.
The memory 103 is a volatile memory (RAM) used as a work area or the like of the CPU 100.
The connection interface 104 is an interface for connecting a communication cable used for communicating with other constituent devices (reflective vehicle detectors 11 and 12, license plate reader 13, tread plate 14, and image display device 20). be. The connection interface 104 is not limited to a wired connection via a communication cable, and may realize a wireless connection with other constituent devices.

Next, various functions of the CPU 100 of the automatic charge collection machine 10 will be described.
By executing the CPU 100 according to a predetermined program, the CPU 100 exhibits functions as a vehicle type determination processing unit 1001, a toll collection processing unit 1002, an optical axis information recording unit 1003, an optical axis information transmission unit 1004, and an approach passage detection unit 1005. do.

The vehicle type discrimination processing unit 1001 acquires vehicle type discrimination information (“NP information”, “number of axles”) through various sensors (license plate reader 13, tread plate 14) installed in the lane L and the island I. Then, the vehicle type determination processing unit 1001 uniquely identifies (determines) the vehicle type classification based on the acquired vehicle type determination information. Since the technique for uniquely identifying the vehicle type classification based on the "NP information" (particularly, the classification number and the plate size) and the "number of axles" is well known, detailed description thereof will be omitted.
The vehicle type determination processing unit 1001 determines the number of times the tread plate 14 has detected trampling during the "ON" period of the vehicle detection signal by the reflective vehicle detector 11 (that is, the vehicle is passing through the vehicle detection position X0). Acquired as the "number of axles" of the vehicle. Therefore, the vehicle type determination processing unit 1001 acquires (determines) the "number of axles" for the vehicle only when the tail of the target vehicle passes the vehicle detection position X0 (determined as "passage detection"). )can do.

The toll collection processing unit 1002 determines the toll to be collected based on the vehicle type classification determined by the vehicle type determination processing unit 1001, and executes the toll collection process for the passengers of the vehicle. The toll collection processing unit 1002 starts accepting toll payments (presentation of payment amount, opening of money slot, etc.) when the determination result of vehicle type classification is acquired (when "passage detection" is made).
Further, if the toll collection processing unit 1002 receives the press of the call button on the operation panel 101 before starting the acceptance of the toll payment, the toll collection processing unit 1002 transmits the detection signal of the press of the call button to the image display device 20.

The optical axis information recording unit 1003 sequentially records the optical axis information acquired through the reflection type vehicle detector 12 and stores it in the memory 103 or the like.
The optical axis information transmission unit 1004 transmits the accumulated optical axis information to the image display device 20.
The "optical axis information" is information based on the detection result of the reflected light (diffuse reflected light P22a shown in FIG. 3) of the detection light P2 projected from the reflective vehicle detector 12, and specifically, each of them. The time difference Δt from when the detection light P2 is projected from the light projecting unit to when the reflected light is received by the corresponding light receiving unit. Details of the optical axis information will be described later.

The approach / passage detection unit 1005 determines "approach detection" and "passage detection" based on the vehicle detection signals of the reflective vehicle detectors 11 and 12, respectively.
Specifically, if the vehicle detection signal by the reflective vehicle detector 11 is turned "ON" immediately after the vehicle detection signal by the reflective vehicle detector 12 is turned "ON", the head of the vehicle is moved forward. It can be determined that the vehicle detection position X0 has been reached. In this case, the approach passage detection unit 1005 determines that "the vehicle has entered the vehicle detection position X0 by moving forward (approach detection)".
Further, if the vehicle detection signal by the reflective vehicle detector 11 is "OFF" immediately after the vehicle detection signal by the reflective vehicle detector 12 is "OFF", the stern of the vehicle is detected by moving forward. It can be determined that the vehicle has passed the position X0 (“missing the tail”). In this case, the approach passage detection unit 1005 determines that "the vehicle has passed the vehicle detection position X0 by moving forward (passage detection)".
Here, the "vehicle detection signals" output by the reflecting vehicle detectors 11 and 12 are signals indicating a determination result of whether or not a vehicle exists before the detection lights P1 and P2 are projected, respectively. .. Specifically, the vehicle detection signal indicates "ON" (the vehicle exists) when the reflected light is detected by a plurality of optical axes (for example, five or more optical axes). Further, the vehicle detection signal indicates "OFF" (the vehicle does not exist) when the reflected light is no longer detected in all the optical axes after being turned "ON" once.

(Functional configuration of image display device)
FIG. 5 is a diagram showing a functional configuration of the image display device according to the first embodiment.
As shown in FIG. 5, the image display device 20 includes a CPU 200, a monitor 201, an input device 202, a memory 203, and a connection interface 204.

The CPU 200 is a processor that controls the entire operation of the image display device 20. Various functions of the CPU 200 will be described later.
The monitor 201 is, for example, a liquid crystal display monitor or the like, and displays an image (“inspection image” described later) toward the observer W1.
The input device 202 is, for example, a mouse, a keyboard, a touch sensor, and a user interface similar to these. By operating the input device 202, the observer W1 performs an operation of designating the vehicle type classification of the arriving vehicle (a vehicle type classification designation process based on the judgment of the observer W1).
The memory 203 is a volatile memory (RAM) used as a work area or the like of the CPU 200.
The connection interface 204 is an interface for connecting a communication cable used for communicating with another component device (automatic toll collector 10). The connection interface 204 is not limited to a wired connection via a communication cable, and may realize a wireless connection with other constituent devices.

Next, various functions of the CPU 200 of the image display device 20 will be described.
The CPU 200 exerts its functions as the optical axis information acquisition unit 2001, the image display unit 2002, and the vehicle type classification information transmission unit 2003 by executing the CPU 200 according to a predetermined program.

The optical axis information acquisition unit 2001 acquires detection results (optical axis information) of a plurality of reflected lights acquired through the reflecting vehicle detector 12 from the automatic toll collector 10.
The image display unit 2002 generates an inspection image based on the time series of the detection results (optical axis information) of the plurality of reflected lights, and displays the inspection image on the monitor 201.
The vehicle type classification information transmission unit 2003 accepts the designation of the vehicle type classification by the observer W1 and transmits information indicating the designated vehicle type classification to the automatic toll collector 10.

(First processing flow of automatic toll collection machine)
FIG. 6 is a diagram showing a first processing flow of the automatic toll collection machine according to the first embodiment.
The processing flow shown in FIG. 6 is a processing flow for performing a vehicle type discrimination process and a toll collection process according to the vehicle type discrimination process among the processes of the automatic toll collection machine 10. The automatic toll collection machine 10 constantly and repeatedly executes the processing flow shown in FIG. 6 while the lane L is in operation.
The approach passage detection unit 1005 of the automatic toll collector 10 monitors the ON / OFF transition of the vehicle detection signal by both the reflective vehicle detectors 11 and 12, and determines whether or not the above-mentioned "entry detection" condition is satisfied. (Step S01). When the ON / OFF transition of the vehicle detection signal does not satisfy the condition of "approach detection" (step S01: NO), the process of step S01 is repeated until "approach detection" is performed.

When the approach passage detection unit 1005 determines "entry detection" (step S01: YES), the vehicle type determination processing unit 1001 of the automatic toll collection machine 10 determines the license plate reader 13 at the timing of the determination of "entry detection". The license plate is photographed by the above and NP information is acquired (step S02).
Subsequently, the vehicle type determination processing unit 1001 counts the number of times the tread plate 14 is stepped on (step S03).
Further, the vehicle type determination processing unit 1001 determines whether or not the call button has been pressed by the passenger (step S04).
When the call button is not pressed (step S04: NO), the approach passage detection unit 1005 monitors the ON / OFF transition of the vehicle detection signal by both the reflective vehicle detectors 11 and 12, and the above-mentioned " It is determined whether or not the condition of "passage detection" is satisfied (step S05). When the ON / OFF transition of the vehicle detection signal does not satisfy the condition of "passage detection" (step S05: NO), the vehicle type determination processing unit 1001 performs steps S03 and S04 until it is determined to be "passage detection". Repeat the process.
When the approach / passage detection unit 1005 determines “passage detection” (step S05: YES), the number of trampling counted in step S03 can be specified as the “number of axles” of the arriving vehicle. The vehicle type determination processing unit 1001 performs vehicle type determination processing of the arrived vehicle using the "NP information" acquired in step S02 and the "number of axles" (step S06).
When the vehicle type determination process is completed in step S06, the charge collection processing unit 1002 of the automatic charge collection machine 10 specifies the payment charge according to the determination result of the vehicle type classification, and starts presenting and collecting the charge (step). S07).

Here, when the length of the traveling vehicle is relatively short, the tail of the vehicle passes through the vehicle detection position X0 before the head of the vehicle reaches the toll collection position X1 (“passage detection” in step S05). "do). Therefore, when the head of the vehicle reaches the toll collection position X1, the toll collection process (step S07) is normally executed through the vehicle type determination process (step S06).
However, when the length of the traveling vehicle is long, even if the head A1 of the vehicle (vehicle A shown in FIGS. 1 and 2) reaches the toll collection position X1, the tail A2 of the vehicle A is It has not passed the vehicle detection position X0 (does not "pass through" in step S05). Therefore, even though the head A1 of the vehicle A has reached the toll collection position X1, the vehicle type determination process (step S06) and the toll collection process (step S07) are not started. In this case, the passenger of the vehicle A presses the call button installed on the operation panel 101 of the automatic toll collector 10.

When the call button is pressed (step S04: YES), the remote monitoring station N performs a vehicle type classification designation process based on the judgment of the observer W1 (step S08). The details of the vehicle type classification designation process at the remote monitoring station N will be described later.
Upon receiving the vehicle type classification designated by the observer W1, the toll collection processing unit 1002 specifies the payment charge according to the vehicle type classification, and starts presenting and collecting the charge (step S07).

(Second processing flow of automatic toll collection machine)
FIG. 7 is a diagram showing a second processing flow of the automatic toll collection machine according to the first embodiment.
Further, FIG. 8 is a diagram showing details of the optical axis information according to the first embodiment.
The processing flow shown in FIG. 7 is a processing flow for acquiring the optical axis information obtained through the reflective vehicle detector 12 in the processing of the automatic toll collector 10.

The optical axis information recording unit 1003 of the automatic toll collector 10 monitors the optical axis information acquired by the reflecting vehicle detector 12, and the measurement distance based on the optical axis information is a plurality of optical axes (for example, five). It is determined by the above optical axis) whether or not it is equal to or less than a predetermined determination threshold value (step S11).
Here, the optical axis information has, for example, a data structure as shown in FIG. The optical axis information includes the identification numbers of the optical axes, which are the times t0, t1, t2, ... The "optical axis ID" is associated with the time difference "Δt" from when the detection light P2 is projected from each light projecting unit to when the light is received by the light receiving unit. In the determination process of step S11, the optical axis information recording unit 1003 multiplies the time difference Δt of the optical axis information acquired at each time by a predetermined constant (speed of light) and converts it into a distance (measurement distance).

When the measurement distance is not equal to or less than the determination threshold value (step S11: NO), it can be determined that the vehicle has not arrived in the lane L, so the determination process in step S11 is repeated until the measurement distance is equal to or less than the determination threshold value.
When the measurement distance is equal to or less than the determination threshold value (step S11: YES), it is said that the vehicle has arrived on the front side in the lane direction (the projection destination of the detection light P2) even if the vehicle detection position X0 has not been reached. Judged. Therefore, the optical axis information recording unit 1003 records and stores the optical axis information acquired thereafter in the internal memory (memory 103 (FIG. 4)) or the like (step S12).

Next, the optical axis information recording unit 1003 determines whether or not the approach detection unit 1005 has determined “passage detection” (step S13). The process of step S13 in FIG. 7 corresponds to the process of step S05 of FIG.
When the approach / passage detection unit 1005 has not determined “passage detection” (step S13: NO), the optical axis information recording unit 1003 further determines whether or not the call button on the operation panel 101 has been pressed (step S13: NO). S14). The process of step S14 in FIG. 7 corresponds to the process of step S04 of FIG.
When the call button of the operation panel 101 is not pressed (step S14: NO), it can be determined that the vehicle is traveling (moving) at least from the position where the detection light P2 is projected toward the toll collection position X1. Therefore, the optical axis information recording unit 1003 repeatedly records and stores the optical axis information (step S12) through the reflecting vehicle detector 12.

When the call button is pressed (step S14: YES), the optical axis information transmission unit 1004 of the automatic toll collector 10 transmits the optical axis information accumulated in the process of step S12 to the remote monitoring station N via the network. It is transmitted to the image display device 20 installed in (step S15). As a result, when the toll collection process (step S07 in FIG. 6) is not started even though the vehicle head has reached the toll collection position X1, the information has been accumulated so far at the timing when the call button is pressed by the passenger. Optical axis information (FIG. 8) is transmitted to the image display device 20.

When the approach passage detection unit 1005 determines "passage detection" while the step S12 is repeated (the optical axis information recording unit 1003 stores the optical axis information) (step S13: YES). , The vehicle type determination process (step S06 in FIG. 6) is completed, and the toll collection process (step S07) is normally started. Therefore, in this case, the optical axis information transmission unit 1004 does not transmit the accumulated optical axis information to the image display device 20.

The optical axis information recording unit 1003 has accumulated optical axis information at, for example, the timing when the passage is detected in step S13 (step S05 in FIG. 6) or the timing when the toll collection process is completed in step S07 in FIG. May be deleted. As a result, a memory area for accumulating optical axis information is secured for the next vehicle to arrive.

(Processing flow of image display device)
FIG. 9 is a diagram showing a processing flow of the image display device according to the first embodiment.
Further, FIG. 10 is a diagram showing an example of an image displayed by the image display device according to the first embodiment.

The processing flow shown in FIG. 9 is executed by the image display device 20 arranged at the remote monitoring station N, and is for performing the vehicle type classification designation processing (step S08 in FIG. 6) based on the judgment of the observer W1. It is a process.

First, the optical axis information acquisition unit 2001 of the image display device 20 determines whether or not a detection signal indicating that the call button has been pressed has been received from the toll automatic collection device 10 (step S21).
If the detection signal indicating that the call button has been pressed has not been received (step S21: NO), the device waits until the detection signal is received.

When the detection signal indicating that the call button is pressed is received (step S21: YES), the optical axis information transmitted from the toll automatic collector 10 is received in step S15 of FIG. 7 (step S22).

Next, the image display unit 2002 of the image display device 20 generates an inspection image based on the time series (time t0, t1, ...) Of the time difference Δt acquired for each optical axis, and displays the inspection image on the monitor 201 (). Step S23).
Specifically, the image display unit 2002 generates an inspection image G in which the shape of the side surface of the vehicle body is copied as shown in FIG. That is, the image display unit 2002 constitutes the inspection image G by setting the installation height (optical axis height) of the optical axis indicated by each optical axis ID (00, 01, ...) Of the optical axis information (FIG. 8). Corresponds to the vertical arrangement of pixels. Further, the image display unit 2002 makes the acquisition time (time t0, t1, ...) Of each optical axis information (FIG. 8) correspond to the horizontal arrangement of the pixels constituting the inspection image G. Then, the image display unit 2002 sets the density of each pixel arranged in a matrix as described above according to the acquisition time (time t0, t1, ...) of the optical axis information (FIG. 8) and each optical axis. Corresponds to the time difference Δt indicated by ID (00, 01, ...). The image display unit 2002 causes the monitor 201 to display the inspection image G generated as described above. The image display unit 2002 may display the NP information acquired through the license plate reader 13 on the monitor 201 together with the generated inspection image G. As a result, the observer W1 can visually recognize both the inspection image G and the NP information from the monitor 201, and can more accurately determine the vehicle type classification of the vehicle A.

When the inspection image G is displayed on the monitor 201, the vehicle type classification information transmission unit 2003 of the image display device 20 then sends the observer W1 through the input device 202 (mouse, keyboard, touch sensor, etc.) of the image display device 20. Accepts the operation of designating the vehicle type classification (step S24).
Here, the observer W1 visually checks the inspection image G displayed on the monitor 201 to confirm the shape of the side surface of the vehicle body (particularly the number of axles) shown in the inspection image G. The observer W1 specifies the vehicle type classification of the target vehicle according to the confirmed number of axles. For example, when the number of axles confirmed from the inspection image G is 4 or less, the observer W1 determines that the vehicle is a "large vehicle" and performs an input operation to specify the "large vehicle" using the input device 202. conduct. When the number of axles confirmed from the inspection image G is 5 or more, the observer W1 determines that the vehicle is an "extra-large vehicle" and performs an input operation to specify the "extra-large vehicle" using the input device 202. conduct.
The vehicle type classification information transmission unit 2003 transmits the vehicle type classification designated by the observer W1 to the automatic toll collector 10 by an input operation (step S25). When the automatic toll collection machine 10 receives the vehicle type classification designated by the observer W1, it executes the toll collection process according to the vehicle type classification (step S07 in FIG. 6).

(Action / effect)
As described above, according to the toll collection system 1 according to the first embodiment, in order to specify the vehicle type classification of the traveling vehicle (vehicle A), the image display device 20 has a side shape of the vehicle copied. Display the inspection image. Specifically, the image display device 20 includes an optical axis information acquisition unit 2001 that acquires a plurality of reflected light detection results (optical axis information shown in FIG. 8) acquired through the reflecting vehicle detector 12, and a plurality of optical axis information acquisition units 2001. An image display unit 2002 that generates an inspection image G (see FIG. 10) based on the time series of the detection result of the reflected light of the above and displays it on the monitor is provided.
By doing so, the image display device 20 conventionally uses a reflective vehicle detector (reflective vehicle detector 12) installed on the roadside to inspect the side shape of the traveling vehicle. Image G can be acquired. Therefore, according to the image display device 20, it is possible to confirm the side shape of the traveling vehicle without newly installing a dedicated roadside camera on the island I.
From the above, according to the toll collection system 1 according to the first embodiment, it is possible to provide the observer with an inspection image for identifying the vehicle type classification while suppressing an increase in the installation space and the installation cost. can.

Further, the image display device 20 according to the first embodiment further accepts the designation of the vehicle type classification by the observer W1 and transmits information indicating the designated vehicle type classification.
As a result, the observer W1 who visually confirmed the inspection image G can remotely start the toll collection process by inputting the vehicle type classification designation operation into the image display device 20 as it is, and the work load of the observer W1. Can be reduced.

Further, the image display device 20 according to the first embodiment sets the time series of the time (time difference Δt) from the projection of the detected light to the reception of the reflected light included in the optical axis information (FIG. 8). The inspection image G is generated based on the above.
Here, the axle in a normal vehicle is a portion where unevenness is particularly remarkable on the side surface of the vehicle body. Therefore, by associating the shading of the image with the time difference Δt (that is, the measurement distance), the axle of the vehicle can be clearly imaged.

Further, according to the toll collection system 1 according to the first embodiment, the reflective vehicle detector 12 projects the detection light P2 toward the front side (−X direction side) in the lane direction from the installation position on the island I. do.
By doing so, the image display device 20 is on the front side (−X direction side) in the lane direction of the vehicle body of the target vehicle (for example, the vehicle A shown in FIGS. 1 and 2) with respect to the vehicle detection position X0. ) Can be projected as an inspection image G up to the rear part of the vehicle body. Therefore, the observer W1 can grasp the side surface shape of the vehicle body in a wide range.

Further, according to the toll collection system 1 according to the first embodiment, in the reflective vehicle detector 12, the head of a vehicle belonging to the maximum charge vehicle type classification (for example, "extra large vehicle") is located at the toll collection position X1 in the lane direction. When it arrives, it is installed so that the detection light P2 can be projected on the front side of the vehicle body in the lane direction from the rearmost axle TE of the vehicle.
In this way, by projecting the detection light P2 on the rearmost axle TE of the vehicle belonging to the "extra-large vehicle", all the axles of the traveling vehicle can be captured on the inspection image G, so that the number of axles of the vehicle Can be grasped accurately.

Further, the toll collection system 1 according to the first embodiment is installed on the lane L or the roadside (island I), and one or a plurality of sensors (NP information, number of axles) for acquiring vehicle type discrimination information (NP information, number of axles) ( It is equipped with a license plate reader 13 and a tread plate 14). Further, the automatic toll collection machine 10 of the toll collection system 1 determines the vehicle type classification of the vehicle traveling in the lane L based on the vehicle type determination information acquired through the sensor.
As a result, when the toll collection system 1 can correctly acquire vehicle type discrimination information (NP information, number of axles) through a plurality of sensors (license plate reader 13, tread plate 14), the toll collection system 1 is based on the vehicle type discrimination information. It is possible to automatically determine the vehicle type classification and determine the collection fee.

<Second embodiment>
Next, the toll collection system according to the second embodiment will be described with reference to FIG. Since the functional configuration of the toll collection system according to the second embodiment is the same as that of the first embodiment, detailed description thereof will be omitted.

(Overall configuration of toll collection system)
FIG. 11 is a diagram showing an overall configuration of the toll collection system according to the second embodiment.
FIG. 11 shows a top view of various constituent members installed on the lane and the road side of the toll collection system 1.

In the toll collection system 1 according to the second embodiment, the toll collection member W2 waiting at the manned booth M on the island I performs the toll collection work for the arriving vehicle.

As shown in FIG. 11, the toll collection system 1 according to the second embodiment does not include the toll automatic toll collector 10, the reflective vehicle detector 11, the license plate reader 13, and the tread plate 14 according to the first embodiment. Instead, a manned booth M and a toll collector 10a are provided inside the booth M.
Further, the reflective vehicle detector 12 installed near the entrance of the lane L has the same aspect as the reflective vehicle detector 12 described in the first embodiment. That is, the reflection type vehicle detector 12 projects a plurality of detection lights P2 arranged in the height direction toward the lane from the road side and detects the reflected light.

The toll collection machine 10a according to the second embodiment is a device used by the collector W2 waiting at the manned booth M to perform toll collection processing (delivery of money, payment by card) to the passengers of the arriving vehicle. Is. Recipient W2 visually confirms the vehicle body of the arriving vehicle to determine the vehicle type classification. Then, the collector W2 collects the charge according to the vehicle type classification while operating the charge collector 10a installed in the manned booth M.

The toll collector 10a includes the functions of the automatic toll collector 10 described in the first embodiment (optical axis information recording unit 1003, optical axis information transmission unit 1004 (see FIG. 4)), and an image display device 20. (Optical axis information acquisition unit 2001, image display unit 2002, vehicle type classification information transmission unit 2003 (see FIG. 5)).
The toll collector 10a having the above functions sequentially records the optical axis information (see FIG. 8) acquired through the reflecting vehicle detector 12 and generates an inspection image G (see FIG. 10) based on the time series. And display it on the monitor.

(Action / effect)
According to the toll collection system 1 according to the second embodiment, for example, the vehicle body shape of the vehicle A belonging to the "extra-large vehicle" (particularly, the presence of the axle near the tail A2) is directly confirmed visually from the manned booth M. When this is not possible, the collector W2 can confirm the side shape (number of axles) of the vehicle body of the vehicle A by visually observing the inspection image G displayed on the monitor of the toll collector 10a. As described above, the toll collection system 1 according to the second embodiment can support the determination work of the vehicle type classification of the collector W2 through the inspection image G displayed on the toll collection machine 10a.

<Third embodiment>
Next, the toll collection system according to the third embodiment will be described with reference to FIG. Since the overall configuration and functional configuration of the toll collection system according to the third embodiment are the same as those of the first embodiment, detailed description thereof will be omitted.

(Optical axis information)
FIG. 12 is a diagram showing details of optical axis information according to the third embodiment.
The automatic toll collector 10 (optical axis information recording unit 1003) according to the third embodiment projects the detection light P2 as the optical axis information obtained through the reflection type vehicle detector 12 and then receives the reflected light. In addition to the time difference (time difference Δt) until the light is removed, the intensity (light amount) of the reflected light is further acquired.

The optical axis information according to the third embodiment has, for example, a data structure as shown in FIG. That is, the optical axis information is the time t0, t1, t2, ... The identification number "optical axis ID", the time difference "Δt", and the "intensity" (light intensity) of the reflected light are associated with each other.

Further, the image display device 20 (image display unit 2002) according to the third embodiment has a time (time difference Δt) from when the detection light is projected to when the reflected light is received, and the intensity of the reflected light. Generate inspection images based on both time series.
Specifically, as in the first embodiment, the image display unit 2002 determines the density of each pixel arranged in a matrix by the acquisition time (time t0, t1, ...) of the optical axis information (FIG. 12). ), And a first inspection image corresponding to the "time difference Δt" indicated by each optical axis ID (00, 01, ...) Is generated.
Further, the image display unit 2002 determines the density of each pixel arranged in a matrix according to the acquisition time (time t0, t1, ...) of the optical axis information (FIG. 12), and each optical axis ID (00, 01, ...) Generates a second inspection image corresponding to the "strength" shown separately.

The image display unit 2002 according to the third embodiment displays on the monitor 201 a composite inspection image formed by synthesizing the first inspection image and the second inspection image.

(Action / effect)
As described above, the image display device 20 (image display unit 2002) according to the third embodiment has a time difference Δt from when the detected light is projected to when the reflected light is received, which is acquired as the optical axis information. , The intensity of the reflected light, and the inspection image is generated based on both time series.
Here, since the tire of the vehicle is generally black, the intensity of the reflected light (diffuse reflected light P22a) of the detection light P2 projected on the tire is the reflection of the detection light P2 projected on the vehicle body other than the tire. It is smaller than the intensity of light. Therefore, by associating the shading of the image with the intensity of the reflected light, the axle of the vehicle can be imaged more clearly.

The image display device 20 (image display unit 2002) according to the third embodiment has been described as displaying a composite inspection image obtained by synthesizing the first inspection image and the second inspection image on the monitor 201. However, other embodiments are not limited to this aspect. That is, the image display unit 2002 according to the other embodiment may display the first inspection image and the second inspection image on the monitor 201, respectively.
Further, the image display unit 2002 according to another embodiment may be in a mode of displaying only the second inspection image on the monitor 201.

(Modification example)
The toll collection system 1 according to the first to third embodiments has been described in detail above, but the specific embodiment of the toll collection system 1 is not limited to the above and does not deviate from the gist. It is possible to make various design changes within.

For example, in the first to third embodiments, the reflecting vehicle detectors 11 and 12 have been described as being a single optical axis multi-axis reflective vehicle detector, but in other embodiments, this embodiment. Not limited to.
The reflecting vehicle detectors 11 and 12 according to the other embodiments include only one optical axis (a pair of a light emitting unit and a light receiving unit), and the one optical axis is rotated by a rotating mechanism in a plurality of directions. It may be a laser scanner that illuminates the light. In this case, each optical axis ID shown in the optical axis information (FIG. 8) may be assigned according to the projection angle of the detection light projected from the laser scanner. Further, in this case, the image display device 20 has the height of the reflection position based on the projection angle θ with respect to a certain optical axis and the distance (measurement distance r) to the reflection position of the optical axis (detection light). Even if the coordinate value (Z) in the direction (± Z direction) is specified and the coordinate value (Z) in the height direction specified for each optical axis is made to correspond to the vertical arrangement of the pixels constituting the inspection image G. good. By doing so, even when the laser scanner as described above is used as the reflection type vehicle detectors 11 and 12, it is possible to generate an inspection image close to the side image of the vehicle A.

Further, in the first to third embodiments, the reflective vehicle detector 12 is installed so as to project the detection light P2 toward the front side in the lane direction from the installation position on the road side (island I). However, in other embodiments, the present invention is not limited to this aspect.
That is, in another embodiment, the reflective vehicle detector 12 may project the detection light P2 in a direction perpendicular to the lane direction (± X direction). Even in such an embodiment, the toll collection system 1 generates the inspection image G at least within the range in which the detection light P2 is projected on the vehicle body of the vehicle A, and the observer W1 (recipient W2) is subjected to the inspection image G. It is possible to support the judgment work of vehicle type classification by presenting.

In each of the above-described embodiments, the various processing processes of the above-mentioned automatic toll collection machine 10 and the image display device 20 are stored in a computer-readable recording medium in the form of a program, and the computer stores this program. The above-mentioned various processes are performed by reading and executing. The computer-readable recording medium refers to a magnetic disk, a magneto-optical disk, a CD-ROM, a DVD-ROM, a semiconductor memory, or the like. Further, this computer program may be distributed to a computer via a communication line, and the computer receiving the distribution may execute the program.

The above program may be for realizing a part of the above-mentioned functions. Further, it may be a so-called difference file (difference program) that can realize the above-mentioned function in combination with a program already recorded in the computer system.
Further, the automatic charge collection device 10 and the image display device 20 may be composed of one computer having all the functions thereof, or may have some of the functions and are connected to each other so as to be able to communicate with each other. It may be composed of a plurality of computers.

As described above, some embodiments according to the present invention have been described, but all of these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

1 Charge collection system 10 Automatic charge collection machine (charge collection machine)
100 CPU
1001 Vehicle type discrimination processing unit 1002 Toll collection processing unit 1003 Optical axis information recording unit 1004 Optical axis information transmission unit 1005 Approach passage detection unit 101 Operation panel 102 Display panel 103 Memory 104 Connection interface 11 Reflective vehicle detector 12 Reflective vehicle detector 13 License plate reader 14 Tread plate 20 Image display device 200 CPU
2001 Optical axis information acquisition unit 2002 Image display unit 2003 Vehicle type classification information transmission unit 201 Monitor 202 Input device 203 Memory 204 Connection interface 10a Charge collector

Claims (7)

An image display device that displays inspection images and
A reflective vehicle detector capable of projecting a plurality of detection lights arranged in the height direction from the road side toward the lane and detecting the reflected light corresponding to each of the plurality of detection lights.
A toll collector that is installed on the far side in the lane direction from the reflective vehicle detector and collects tolls according to the vehicle type classification.
With
The reflective vehicle detector is
The detection light is projected toward the front side in the lane direction from the installation position on the road side.
The image display device is
An optical axis information acquisition unit that acquires detection results of a plurality of the reflected lights acquired through the reflection type vehicle detector, and an optical axis information acquisition unit.
An image display unit that generates an inspection image based on the time series of the detection results of the plurality of reflected lights and displays it on the monitor.
With
When the toll collection machine receives a predetermined operation for starting the toll collection process from the user, the toll collection machine detects the reflected light accumulated up to that point through the reflection type vehicle detector for the user's vehicle. The result is transmitted to the image display device,
Toll collection system. The toll collection system according to claim 1, wherein the image display device further includes a vehicle type classification information transmitting unit that receives designation of a vehicle type classification by an observer and transmits information indicating the designated vehicle type classification. The image display unit
The inspection image is based on at least one of the time difference between the projection of the detected light and the reception of the reflected light, which is the detection result of the reflected light, and the intensity of the reflected light. The toll collection system according to claim 1 or 2. The reflective vehicle detector is
When the head of a vehicle belonging to the maximum charge vehicle type category reaches the installation position of the toll collector in the lane direction, the detection light is located in front of the rearmost axle of the vehicle in the vehicle body. Is installed so that it can be flooded
The toll collection system according to any one of claims 1 to 3. One or more sensors installed on the lane or roadside to acquire vehicle type discrimination information,
A vehicle type determination processing unit that determines the vehicle type classification of a vehicle traveling in the lane based on the vehicle type determination information, and a vehicle type determination processing unit.
The toll collection system according to any one of claims 1 to 4 , further comprising. An image display device that displays inspection images and
A reflective vehicle detector capable of projecting a plurality of detection lights arranged in the height direction from the road side toward the lane and detecting the reflected light corresponding to each of the plurality of detection lights.
A toll collector that is installed on the far side in the lane direction from the reflective vehicle detector and collects tolls according to the vehicle type classification.
It is a fee collection method using
The reflective vehicle detector is
The detection light is projected toward the front side in the lane direction from the installation position on the road side.
The image display device is
A step of acquiring a plurality of detection results of the reflected light acquired through the reflecting vehicle detector, and
A step of generating an inspection image based on the time series of the detection results of the plurality of reflected lights and displaying the inspection image on the monitor.
And
When the toll collection machine receives a predetermined operation for starting the toll collection process from the user, the toll collection machine detects the reflected light accumulated up to that point through the reflection type vehicle detector for the user's vehicle. The result is transmitted to the image display device,
How to collect charges. An image display device that displays inspection images and
A reflective vehicle detector capable of projecting a plurality of detection lights arranged in the height direction from the road side toward the lane and detecting the reflected light corresponding to each of the plurality of detection lights.
A toll collector that is installed on the far side in the lane direction from the reflective vehicle detector and collects tolls according to the vehicle type classification.
With
The reflective vehicle detector projects the detection light toward the front side in the lane direction from the installation position on the road side.
A program applied to the computer of the toll collection system
To the computer of the image display device
A step of acquiring a plurality of detection results of the reflected light acquired through the reflecting vehicle detector, and
A step of generating an inspection image based on the time series of the detection results of the plurality of reflected lights and displaying the inspection image on the monitor.
To run,
On the computer of the toll collector
When a predetermined operation for starting the toll collection process is received from the user, the image display device displays the detection result of the reflected light accumulated up to that point through the reflective vehicle detector for the user's vehicle. To perform the steps to send to
program.

Images